PPT น้ำฝน Mitosis

Cell Cycle and Cell Division

Update 4 เมษายน 2564



Reproduction • Asexual Reproduction
• Sexual Reproduction

Cell Division

• Reproduction
• Growth
• Tissue renewal



การแบ่งนิวเคลียส Amitosis
Mitosis
Meiosis





DNA สาร
พนั ธุกรรม





DNA

Genome

Chromatin fiber

Chromosome
•Centromere
•Chromatid
Homologous Chromosome

Ploidy
•Haploid
•Diploid
•Polyploid







• The transmission of traits from one
generation to the next is called
inheritance, or heredity

• Along with inherited similarity, there is
also variation.

• Genetics is the scientific study of
heredity and inherited variation

• chromosomes pass from parents to
offspring in sexually reproducing
organisms.

• The processes of meiosis (a special type
of cell division) and fertilization (the
fusion of sperm and egg, as seen in the
small photo) maintain a species’
chromosome count during the sexual life
cycle.



Mitosis Interphase

Mitotic phase
•Karyokinesis
•Cytokinesis

Interphase

Control of the cell division

• G1 Phase
• S Phase
• G2 Phase
• M checkpoint



Cytokinesis Cleavage furrow
Cell Plate formation

Animal vs Plant

Meiosis

Meiosis • Interphase I Meiosis • Interphase II
I • Prophase I II • Prophase II
• Metaphase I • Metaphase II
• Anaphase I • Anaphase II
• Telophase I • Telophase II